Try to get jest tests working

[igilham]

Add an example of running tests with jest.

[igilham]

It should be possible using something like this (paths are probably wrong):

   nodejs_test(
       name = "jest",
       entry_point = "@npm//:node_modules/jest/bin/cli.js",
       data = ["@npm//jest"],
   )
   ```

[igilham]

this may help

[igilham]

The new npm_package_bin rule may work better and with less effort.

[igilham]

rules_nodejs version 0.38.2 has new support for this.